Transverse permeability of dry fiber preforms manufactured by automated fiber placement
Article
Article Title | Transverse permeability of dry fiber preforms manufactured by automated fiber placement |
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ERA Journal ID | 4884 |
Article Category | Article |
Authors | Aziz, A. R. (Author), Ali, M. A. (Author), Zeng, X. (Author), Umer, R. (Author), Schubel, P. (Author) and Cantwell, W. J. (Author) |
Journal Title | Composites Science and Technology |
Journal Citation | 152, pp. 57-67 |
Number of Pages | 11 |
Year | 2017 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0266-3538 |
1879-1050 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compscitech.2017.09.011 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S026635381731610X |
Abstract | This work presents a correlation between the transverse permeability of a preform and the process variability of the automated dry fiber placement manufacturing technique. In this study, an experimental and numerical analysis of the dry tape preform, with a focus on its through-thickness permeability, has been undertaken. Geometric models, containing flow channels of two different width dry tape carbon preforms, have been created in the TexGen modeller. A Computational fluid dynamics (CFD) simulation has been undertaken to obtain the predicted through-thickness-permeability of the dry tape preform. A parametric study on the effect of different dry tape gap sizes on the permeability of the preform is presented. An in-situ compaction study, carried out in an X-CT machine, revealed that the gap sizes were irregular throughout the manufactured preforms. In addition, an experimental investigation of the through-thickness permeability, which is based on a saturated flow condition at a thickness corresponding to full vacuum pressure, is also presented. The permeability prediction based on the X-CT re-constructed geometric model has been validated using the experimental data. A further parametric study has revealed that the process variablity in automated dry fibre placement influences the through-thickness permeability by a factor of upto 5. |
Keywords | Modeling; Automated fiber placement; Layered structures; Resin flow |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
400101. Aerospace materials | |
401706. Numerical modelling and mechanical characterisation | |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Khalifa University, United Arab Emirates |
Centre for Future Materials |
https://research.usq.edu.au/item/q46q8/transverse-permeability-of-dry-fiber-preforms-manufactured-by-automated-fiber-placement
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